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1. On assessing the size of the humped rockcod stock (Notothenia gibberifrons) in Subarea 48.3

   thousand tonnes for N. gibberifrons biomass in the 1989/90 season. It is thus possible to suggest a TAC of ... Abstract:  An adaptive approach was used to assess the Notothenia gibberifrons stock in Area 48.3 ... imperative to estimate the catchability coefficient. This parameter was equal to 0.326 to 0.635. An adaptive ... logarithms of observed and calculated biomass indices and resulted in an estimate of from 21.5 to 42.1 ...

   Meeting Document : WG-FSA-91/26 : Autor(es): P.S. Gasiukov (USSR)

2. Modelling the dynamics of krill populations in the Antarctic Peninsula region

   data for the first age class produced an instantaneous mortality rate estimate of approximately 0.6 ... a relatively poor fit to the observed data. Using the recruitment data for the second age class ... observed density changes. The need for caution in interpreting the model results was emphasized by an ... second method develops a fully age-structured population model and uses only the recruitment data to ...

   Meeting Document : WG-EMM-99/56 : Autor(es): E.J. Murphy (United Kingdom), A. Constable (Australia) and D. Agnew (United Kingdom)

3. Characteristics of distribution of krill aggregations in fishing grounds off Coronation Island in 1989-1990 season

   Author(s):  S.M. Kasatkina and V.I. Latogursky (USSR) Title:  Characteristics of distribution of krill aggregations in fishing grounds off Coronation Island in 1989-1990 season Approval:  Approved

   Meeting Document : WG-KRILL-90/20 : Autor(es): S.M. Kasatkina and V.I. Latogursky (USSR)

4. The CCAMLR Ecosystem Monitoring Program (CEMP)

   Author(s):  Secretariat Title:  The CCAMLR Ecosystem Monitoring Program (CEMP) Approval:  Approved

   Meeting Document : WG-CEMP-90/20 : Autor(es): Secretariat

5. On reproduction of Electrona carlsbergi Tåning

   Abstract:  A subject of the present study is Electrona carlsbergi from the Atlantic sector of the Southern Ocean. Results from histological examination of gonads are presented. From materials available it has been ascertained that Electrona carlsbergi breeds in the notal zone. The ripening of

   Meeting Document : WG-FSA-90/20 : Autor(es): G.P. Mazhirina (USSR)

6. Results from the 2019 annual acoustic krill monitoring off the South Orkney Islands

   comparison with previous survey years and provide some context for the large scale survey estimate, we here ... surveys from 2011 to 2018. The distribution was similar to previous years with most krill along the shelf ... conducted by RV Kronprins Haakon as part of the Scotia Sea large scale krill monitoring effort. To allow for ... responsibility for releasing documents:  Norway ...

   Meeting Document : WG-EMM-2019/69 : Autor(es): G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad

7. Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)

   the otoliths of D. mawsoni appears to be a valid method for determining the age of this species ... , sagittal otoliths were examined from D. mawsoni that had been injected with oxytetracycline some years ... juvenile D. mawsoni. Mean fish lengths at ages 0.5, 1.5, 2.5, and 3.5 years were estimated to be 14, 28, 37 ... sample of data that was large but lacked any fish younger than 3.5 years. Counting translucent zones in ...

   Meeting Document : WG-FSA-02/33 : Autor(es): P.L. Horn, C.P. Sutton (New Zealand) and A.L. DeVries (USA)

8. Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz

   collected per animal. Orientation data were recorded on video. The acoustic data were analyzed and target ... strengths determined from each echo. A method was developed for estimating the three-dimensional orientation ... approximation (DWBA) method were developed for five animals and compared with the measurements. Both measured ... animal orientation. Use of these scattering patterns with orientation data from shipboard studies of E ...

   Meeting Document : WG-EMM-99/42 : Autor(es): D.E. McGehee (USA), R.L. O’Driscoll (New Zealand) and L.V. Martin Traykovski (USA)

9. Inter-annual variability in krill density at South Georgia: 1997–2012

   , mean density for the area) showed several years of moderate to high values (µ > 30 gm-2 ... ) interspersed with years (1999-2000, 2004, 2009-2010) of very low density (µ < 30 gm-2).   Author(s):  S ... one year were driving the mean krill density estimates for the WCB in that year. WCB krill density (µ ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ...

   Meeting Document : WG-EMM-13/14 : Autor(es): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)

10. The area north of Joinville–D’Urville Islands (Subarea 48.1) a former fishing ground at the tip of the Antarctic Peninsula – revisited

    . Published and unpublished reports by the Fischkombinat in Rostock (ex- German Democratic Republic), Sea ... fishing operations in the 1970’s and 1980’s were analysed in order to provide a comprehensive review of ...

    Meeting Document : WG-FSA-03/26 : Autor(es): K.-H. Kock (Germany), L. Pshenichnov (Ukraine), K. Skora (Poland), Zh.A. Frolkina (Russia) and C.D. Jones (USA)

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